int main()		        //	type and name of the function: here the main function using an empty parameter list ( )
{		        //	begin of the function body

   //	   the body of the function

	int i;	        //	   declaration of an integer variable i

	print("x, y");       //	   at first, we display column names using the print function with the text "x, y" as parameter

	for(i=0; i<10; i=i+1)   //   now we use a for-loop beginning at i=0 and ending if i<10 becomes false with a step of 1 ...
	{	        //	   begin of the body of loop

   //		   ... to display 10 times i and i multiplied by 2, using the print function
   //		   since the parameter has to be a string, we use at first an empty string
   //		   the plus sign means a concatenation and
   //		   the numerical value i is implicitely converted to at string,
   //		   then we concatenate a coma separator ", " and
   //		   finally we concatenate 2*i converted to a string

		print("" + i + ", " + 2*i);

	}	        //	   end of the body of the loop

}   		        //	   end of the function body
